The new crew will replace four station fliers who returned to Earth ahead of schedule last month due to a medical issue.

Light is the fastest phenomenon in the universe, clocking in at just under 300,000 kilometers per second. The telescopes that observe that light, from radio waves to gamma rays, are built at rather ...

After pre-launch testing revealed rocket issues, NASA has delayed the Artemis II launch until March. Here's the latest.

The United States set out to return astronauts to the Moon on its own terms, with NASA’s Artemis program framed as a careful, sustainable sequel to Apollo. Instead, a tightening schedule, technical ...

The agency did not complete a practice countdown for a mission that would be the first to send people around the moon in more than 50 years.

NASA has released its monthly skywatching update on what to look out for over the coming weeks, and you can probably guess ...

Temperatures dropped into the 20s over the weekend, yet NASA teams are hard at work preparing for the historic Artemis II ...

NASA’s associate administrator, the agency’s highest ranking civil servant, says there’s no pressure to launch a long-awaited crewed mission around the moon following a new delay to the lunar fly-by.

NASA completed the Artemis II wet dress rehearsal and is reviewing test data after fueling challenges, with March identified as the earliest possible launch opportunity.

NASA is preparing to launch its latest Artemis mission as a narrow launch window opens following delays caused by extreme cold weather. The US space agency has only a few days each month to send ...

NASA’s first crewed trip back toward the Moon in more than half a century is suddenly on less certain footing. After a string ...

The convergence of the Artemis II and Crew-12 launch schedules adds another layer of importance to Monday’s countdown test at Kennedy Space Center. For the first time since the 1960s, NASA has ...